High School Physics : Understanding Electric Fields

Study concepts, example questions & explanations for High School Physics

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Example Questions

Example Question #1 : Electricity And Magnetism

Calculate the magnitude of the electric field at a point that is located  directly north of a point charge, .

Possible Answers:


 

Correct answer:


 

Explanation:

The magnitude of an electric field due to a single point charge is given by the formula:

The variable refers to Coulomb's constant. We are given the charge and the distance between points. To use the equation, first convert the distance to meters.

We can now use the given constant, charge, and distance in the equation to solve for the magnetic field strength.

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